<atSelect [(ngModel)]="single" [atSize]="'large'" [searchable]="true">
  <atOption [atLabel]="'first'" [atValue]="1"></atOption>
  <atOption [atLabel]="'second'" [atValue]="2"></atOption>
  <atOption [atLabel]="'next'" [atValue]="3"></atOption>
</atSelect>

{{single}}
